/*
 * Copyright (c) 2008 VMware, Inc.
 * Copyright (c) 2009 John Pritchard, WTKX Project Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package wtkx.wtk;

import wtkx.Accordion;
import wtkx.util.Vote;

/**
 * Accordion selection listener interface.
 *
 * @author gbrown
 */
public interface AccordionSelectionListener {
	/**
	 * Called to preview a selected index change.
	 *
	 * @param accordion
	 * @param selectedIndex
	 */
	public Vote previewSelectedIndexChange(Accordion accordion, int selectedIndex);

	/**
	 * Called when a selected index change has been vetoed.
	 *
	 * @param accordion
	 * @param reason
	 */
	public void selectedIndexChangeVetoed(Accordion accordion, Vote reason);

	/**
     * Called when an accordion's selected index has changed.
     *
     * @param accordion
     * @param previousSelectedIndex
     */
    public void selectedIndexChanged(Accordion accordion, int previousSelectedIndex);
}
